well, each Cl- loses one electron, and each Cr+6 ion gains three electrons to go to Cr+3, so we need three Cl- for each Cr+6
Cr2O7-2 + 6 Cl-1 >> 2Cr+3 + 3Cl2
check my thinking.
What is the balanced equation of Cr2O7(-2) + Cl(-) → Cr(3+) + Cl2?
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3 answers